Image build is optimized.

flask_ml_api/Dockerfile

-FROM python:3.11-slim
+# Build stage
+FROM python:3.10-slim AS builder
 
-# Installing system dependencies
+# Install system dependencies
 RUN apt-get update && apt-get install -y --no-install-recommends \
     build-essential \
     python3-venv \
-    curl \
     && rm -rf /var/lib/apt/lists/*
 
-# Creating and activating the virtual environment \
+# Create and activate virtual environment
 RUN python3 -m venv /opt/myenv
 ENV PATH="/opt/myenv/bin:$PATH"
 
 WORKDIR /app
 COPY . /app
 COPY ./asyst /app/asyst
+COPY requirements.txt .
 
-# Installing dependencies
-RUN /opt/myenv/bin/pip install -r /app/requirements.txt
-RUN /opt/myenv/bin/python3 -m pip install --upgrade setuptools wheel
+# Install dependencies
+RUN /opt/myenv/bin/pip install -r /app/requirements.txt \
+    && /opt/myenv/bin/python3 -m pip install --upgrade setuptools wheel
 
 
+# Final image
+FROM python:3.10-slim
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy virtual environment and application from build stage
+COPY --from=builder /opt/myenv /opt/myenv
+COPY --from=builder /app /app
+
+# Activate virtual environment in the final image
+ENV PATH="/opt/myenv/bin:$PATH"
+
 # Set permissions
-RUN chown -R www-data:www-data /app/asyst
-RUN chmod -R 755 /app/asyst
+RUN chown -R www-data:www-data /app/asyst \
+    && chmod -R 755 /app/asyst
 
-# Open port for Flask API
+# Expose port for Flask API
 EXPOSE 5000
 
-# Launch application
-CMD ["python", "/app/api.py"]
+# Run the application
+CMD ["/opt/myenv/bin/python", "/app/api.py"]
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